Hi Skip
Omg my answer is wrong, I was confused with the CC of the 4.2 beta
There is no RPO cc 41 & value 103
I was confuse with the command of Next track of the 4.2 and this is CC 41 Value 103 like David mentionned here : Aeros Firmware 4.2.x - Aeros Loop Studio / Docs and Downloads - Singular Sound Forum
This command allow you to select the track that you want a RPO, like the middle switch of the Looper
Sorry Dude!